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Norwood Green · UB2, UB1

Damp, Mould & Leak Specialists in Norwood Green

Non-destructive damp surveys, hidden leak detection and mould investigation across Norwood Green and the surrounding area, with clear, insurance-ready reports.

Call 020 3051 8478Request a survey
★★★★★ 4.9 from 17 Google reviews · trusted by Norwood Green homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Norwood Green, our specialists carry out a non-destructive survey to find the root cause, then give you a written report and a clear plan to fix it. A full damp and mould survey is a fixed £500. Call 020 3051 8478.
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Damp, mould & leak services in Norwood Green

Norwood Green's housing runs from Victorian and Edwardian cottages clustered around the historic green and St Mary's Church to interwar semi-detached houses built as Southall and Hanwell expanded, plus postwar council flats and newer infill near the Grand Union Canal. Solid brick walls with no damp proof course, ageing pebbledash render, flat roofs and canal-side ground conditions all contribute to persistent damp, mould and leak problems across the area.

Leak Detection

Trace hidden water leaks without damage using thermal, acoustic and tracer-gas methods. Leak detection →

Damp Investigation

Identify rising damp, penetrating damp and condensation, and tell them apart properly. Damp investigation →

Mould Inspection

Find the moisture source feeding the mould, not just treat the surface. Mould inspection →

Structural Drying

Dry out walls, floors and voids after a leak or flood, monitored to completion. Structural drying →

Areas of Norwood Green we cover

We survey properties right across Norwood Green and its neighbourhoods, including:

Common damp problems in Norwood Green homes

Rising damp in Victorian cottages near the green

The older terraced cottages around Norwood Green Green and St Mary's Church were built with solid brick walls and no effective damp proof course. Groundwater rises through the masonry, leaving tide-mark staining and crumbling plaster at skirting level. Many have had cement render or non-breathable coatings applied over the years, which traps moisture in the wall rather than letting it evaporate, worsening mould at low level.

Cracked render and cavity wall damp on 1930s semis

Norwood Green's interwar semi-detached streets, typical of the wider Southall and Hanwell suburban expansion, rely on pebbledash or smooth render over cavity walls. Hairline cracking, perished pointing around bay windows and blocked weep holes let rain penetrate the cavity, tracking damp patches across internal chimney breasts and bedroom corners. Cavity wall insulation retrofitted decades ago can also bridge the gap, giving penetrating damp a direct route inside.

Condensation and flat roof leaks in canal-side flats

Postwar council flats and low-rise blocks near the Grand Union Canal and Windmill Lane often have flat or shallow-pitched roofs prone to ponding and membrane failure, causing ceiling staining after heavy rain. Combined with poor cross-ventilation in compact kitchens and bathrooms, this drives persistent condensation and black mould around window reveals, particularly in ground and top-floor units close to the waterway's higher ambient moisture.

What our customers say

★★★★★

I recently used a damp and mould specialist company and was extremely impressed with the service from start to finish. From the initial survey, they were knowledgeable, thorough, and took the time to clearly explain the cause of the issue rather than just treating the symptoms.

Tarik Barak, via Google

★★★★★

Omg what brilliant service, excellent the cleaner did a very good job was efficient he took his time and cleaned everything, highly recommend S. Bessim…

Susan Bessim, via Google

★★★★★

Amazing company! They responding very quickly. They have a low prices as well, not crazy quotes like from others. Job has been done very quickly and team was very professional. I will use them in the future if I needed. Thanks!

Patryk Gutowski, via Google

Tip: If a damp patch keeps coming back after redecorating, it is almost always a symptom, not the problem. A survey that finds the source first saves paying for the same repair twice.

Book a survey in Norwood Green

Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Norwood Green. Works are on a 50% upfront, 50% on completion basis.

Frequently asked questions

How much does a damp survey in Norwood Green cost?
A damp and mould survey is a fixed £500, including the non-destructive investigation and an insurance-ready written report. Leak detection, if needed, is £800 to £1500 depending on scale.
Do you cover the whole of Norwood Green?
Yes. We survey properties across Norwood Green and the surrounding neighbourhoods and postcodes.
Can you tell the difference between condensation, rising and penetrating damp?
Yes, and it matters because the fix differs for each. Our survey identifies which type you have using moisture readings and thermal imaging.
Do you provide reports for insurance claims?
Yes. Every survey comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents.